Patents by Inventor Takafumi Higuchi
Takafumi Higuchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230033889Abstract: A light-emitting element array includes a substrate, plural light-emitting elements arranged on the substrate, plural constriction grooves being provided in a periphery of each of the plural light-emitting elements, and forming a current constriction layer that constricts a current flowing through a light-emitting layer by oxidizing the light-emitting layer, and a block separation portion that is formed so as to overlap a part of the plural constriction grooves in plan view, and separates the plural light-emitting elements into plural blocks.Type: ApplicationFiled: April 24, 2022Publication date: February 2, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Takashi KONDO, Michiaki MURATA, Junichiro HAYAKAWA, Takafumi HIGUCHI
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Publication number: 20230011306Abstract: A light emitting apparatus includes a substrate and light emitting elements including at least one light emitting element that is provided, on the substrate, in each region of plural regions and that emits irradiation light toward a target object, the regions including a first region and a second region and being isolated from each other to be arranged one-dimensionally or two-dimensionally. In the plural regions, an irradiation light amount of at least one light emitting element provided in the first region that is a region located at an end in an arrangement direction is larger than an irradiation light amount of at least one light emitting element provided in the second region that is a region located at a place other than the end in the arrangement direction.Type: ApplicationFiled: December 2, 2021Publication date: January 12, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Takashi KONDO, Junichiro HAYAKAWA, Takafumi HIGUCHI
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Patent number: 11539191Abstract: A light-emitting device includes a light diffusing member that diffuses light emitted from a light source so that an object to be measured is irradiated with the light; and a holding unit that is provided on plural wires connected to the light source and holds the light diffusing member.Type: GrantFiled: December 12, 2019Date of Patent: December 27, 2022Assignee: FUJIFILM Business Innovation Corp.Inventors: Kenichi Ono, Takeshi Minamiru, Satoshi Inada, Takafumi Higuchi, Tsutomu Otsuka
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Publication number: 20220344900Abstract: A light-emitting component includes a substrate, plural light-emitting elements that are disposed on the substrate and emit light in a direction intersecting with a surface of the substrate, and a gate electrode that is electrically connected to each of the plural light-emitting elements and that performs control so that the plural light-emitting elements are switched ON/OFF together. A distance between each of the plural light-emitting elements and the gate electrode is smaller than a largest distance between two light-emitting elements among the plural light-emitting elements.Type: ApplicationFiled: August 13, 2021Publication date: October 27, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Takashi KONDO, Junichiro HAYAKAWA, Takafumi HIGUCHI
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Publication number: 20220344908Abstract: A light-emitting component includes a substrate, plural light-emitting elements that are disposed on the substrate and emit light in a direction intersecting with a surface of the substrate, and a gate electrode that is electrically connected to each of the plural light-emitting elements and performs control so that the plural light-emitting elements are switched ON/OFF together. Plural holes are disposed around each of the plural light-emitting elements.Type: ApplicationFiled: August 25, 2021Publication date: October 27, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Takashi KONDO, Michiaki MURATA, Junichiro HAYAKAWA, Takafumi HIGUCHI
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Publication number: 20220344901Abstract: A light-emitting component includes a substrate and plural light-emitting elements that are disposed on the substrate and emit light in a direction intersecting with a surface of the substrate and that are switched ON/OFF together. The plural light-emitting elements include a gate layer, the gate layer performing control so that the plural light-emitting elements are switched ON/OFF together, a film thickness of the gate layer being greater than a wavelength of light emitted from the plural light-emitting elements.Type: ApplicationFiled: August 13, 2021Publication date: October 27, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Takashi KONDO, Kenichi ONO, Junichiro HAYAKAWA, Takafumi HIGUCHI
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Publication number: 20220311209Abstract: A light-emitting device includes: a substrate; a light-emitting unit including plural light-emitting elements; a transfer unit configured to output a signal that controls a light-emitting state of the light-emitting elements; and an electrode unit configured to input and output a signal that drives the transfer unit, the substrate has a rectangular shape having a long side and a short side, and the electrode unit is disposed along the short side of the substrate with the transfer unit interposed between a part of the electrode unit and other part of the electrode unit.Type: ApplicationFiled: August 25, 2021Publication date: September 29, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Takashi KONDO, Michiaki MURATA, Kenichi ONO, Junichiro HAYAKAWA, Takafumi HIGUCHI, Takashi FUJIMOTO, Manabu AKAMATSU
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Publication number: 20220301135Abstract: A semiconductor inspection method by an observation system includes a step of acquiring a first pattern image showing a pattern of a semiconductor device, a step of acquiring a second pattern image showing a pattern of the semiconductor device and having a different resolution from a resolution of the first pattern image, a step of learning a reconstruction process of the second pattern image using the first pattern image as training data by machine learning, and reconstructing the second pattern image into a reconstructed image having a different resolution from a resolution of the second pattern image by the reconstruction process based on a result of the learning, and a step of performing alignment based on a region calculated to have a high degree of certainty by the reconstruction process in the reconstructed image and the first pattern image.Type: ApplicationFiled: April 16, 2020Publication date: September 22, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomochika TAKESHIMA, Takafumi HIGUCHI, Kazuhiro HOTTA
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Publication number: 20220301197Abstract: An observation system includes a detector that detects light from a semiconductor device and outputs a detection signal, a 2D camera, an optical device that guides light to the detector and the 2D camera, an image processing unit that generates a first optical image of the semiconductor device based on the detection signal and receives an input of a first CAD image, an image analysis unit that learns a conversion process of the first CAD image by machine learning using the first optical image as training data, and converts the first CAD image into a second CAD image resembling the first optical image by the conversion process based on a result of the learning, and an alignment unit that performs alignment based on a second optical image and the second CAD image.Type: ApplicationFiled: April 16, 2020Publication date: September 22, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomochika TAKESHIMA, Takafumi HIGUCHI, Kazuhiro HOTTA
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Publication number: 20220221411Abstract: A semiconductor apparatus examination method includes a step of acquiring a first interference waveform based on signals from a plurality of drive elements according to light from a first light beam spot including the plurality of drive elements in a semiconductor apparatus, a step of acquiring a second interference waveform based on signals from the plurality of drive elements according to light from a second light beam spot having a region configured to partially overlap the first spot and including the plurality of drive elements, and a step of separating a waveform signal for each of the drive elements in the first and second spots based on the first and second interference waveforms.Type: ApplicationFiled: April 9, 2020Publication date: July 14, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomochika TAKESHIMA, Takafumi HIGUCHI, Kazuhiro HOTTA
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Publication number: 20220206063Abstract: A semiconductor device examination method includes a step of acquiring a first interference waveform based on signals from a plurality of drive elements according to light from a first light beam spot including the plurality of drive elements in a semiconductor device, a step of acquiring a second interference waveform based on signals from the plurality of drive elements according to light from a second light beam spot having a region configured to partially overlap the first spot and including the plurality of drive elements, and a step of separating a waveform signal for each of the drive elements in the first and second spots based on the first and second interference waveforms.Type: ApplicationFiled: April 9, 2020Publication date: June 30, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomochika TAKESHIMA, Takafumi HIGUCHI, Kazuhiro HOTTA
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Publication number: 20220123524Abstract: A light-emitting device includes: a light source including plural light-emitting elements; a first optical member that is provided in a light-emitting path of the light source, the first optical member being configured to reduce intensity of light emitted from the light source and emit the light; and a second optical member that is provided on a light-emitting side of the first optical member and is configured to diffuse and irradiate light incident from the first optical member.Type: ApplicationFiled: December 30, 2021Publication date: April 21, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Takafumi HIGUCHI, Takeshi MINAMIRU, Satoshi INADA, Shigetoshi NAKAMURA, Kenichi ONO
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Publication number: 20220114835Abstract: A light-emitting device includes: a light source including plural light-emitting elements; a first optical member that is provided in a light-emitting path of the light source, the first optical member being configured to narrow a spread angle of light emitted from each of the light-emitting elements of the light source and emit the narrowed light; and a second optical member that is provided on a light-emitting side of the first optical member and is configured to diffuse and irradiate light incident from the first optical member.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Takeshi MINAMIRU, Satoshi INADA, Takafumi HIGUCHI, Shigetoshi NAKAMURA, Kenichi ONO
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Publication number: 20220115836Abstract: A light-emitting device includes: a light source including light-emitting elements configured to oscillate in a single transverse mode; and an optical member that is provided on a light-emitting path of the light source and configured to diffuse and emit light emitted by the light source.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Takeshi MINAMIRU, Satoshi Inada, Takafumi Higuchi, Shigetoshi Nakamura, Kenichi Ono
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Publication number: 20220077654Abstract: A light emitting element formed of a laminate having a current constriction layer includes: a semiconductor substrate; a light emitting portion having plural first recess portions having a depth reaching the current constriction layer, and a current constriction structure formed in the current constriction layer and having an oxidized region where the current constriction layer is oxidized and a non-oxidized region surrounded by the oxidized region; an electrode pad disposed between the light emitting portion and an outer edge portion of the semiconductor substrate; and a step portion disposed between the electrode pad and the light emitting portion and formed from an upper surface of the laminate to the current constriction layer, and the current constriction layer in a region surrounded by the step portion is the oxidized region except for the non-oxidized region.Type: ApplicationFiled: January 12, 2021Publication date: March 10, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Takeshi MINAMIRU, Takashi KONDO, Takafumi HIGUCHI
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Publication number: 20220066055Abstract: A photon counting device includes a plurality of pixels each including a photoelectric conversion element configured to convert input light to charge, and an amplifier configured to amplify the charge converted by the photoelectric conversion element and convert the charge to a voltage, an A/D converter configured to convert the voltage output from the amplifier of each of the plurality of pixels to a digital value and output the digital value, a correction unit configured to correct the digital value output from the A/D converter so that an influence of a variation in a gain and an offset value among the plurality of pixels is curbed, a calculation unit configured to output a summed value obtained by summing the corrected digital values corresponding to at least two pixels, and a conversion unit configured to convert the summed value output from the calculation unit to a number of photons.Type: ApplicationFiled: October 14, 2021Publication date: March 3, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tadashi MARUNO, Eiji TODA, Mao NAKAJIMA, Teruo TAKAHASHI, Takafumi HIGUCHI
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Publication number: 20220035056Abstract: A photon counting device includes a plurality of pixels each including a photoelectric conversion element configured to convert input light to charge, and an amplifier configured to amplify the charge converted by the photoelectric conversion element and convert the charge to a voltage, an A/D converter configured to convert the voltages output from the amplifiers of the plurality of pixels to digital values; and a conversion unit configured to convert the digital value output from the A/D converter to the number of photons by referring to reference data, for each of the plurality of pixels, and the reference data is created based on a gain and an offset value for each of the plurality of pixels.Type: ApplicationFiled: October 15, 2021Publication date: February 3, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tadashi MARUNO, Eiji TODA, Mao NAKAJIMA, Teruo TAKAHASHI, Takafumi HIGUCHI
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Patent number: 11215717Abstract: A photon counting device includes a plurality of pixels each including a photoelectric conversion element configured to convert input light to charge, and an amplifier configured to amplify the charge converted by the photoelectric conversion element and convert the charge to a voltage, an A/D converter configured to convert the voltage output from the amplifier of each of the plurality of pixels to a digital value and output the digital value, a correction unit configured to correct the digital value output from the A/D converter so that an influence of a variation in a gain and an offset value among the plurality of pixels is curbed, a calculation unit configured to output a summed value obtained by summing the corrected digital values corresponding to at least two pixels, and a conversion unit configured to convert the summed value output from the calculation unit to a number of photons.Type: GrantFiled: June 18, 2018Date of Patent: January 4, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tadashi Maruno, Eiji Toda, Mao Nakajima, Teruo Takahashi, Takafumi Higuchi
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Patent number: 11204432Abstract: A photon counting device includes a plurality of pixels each including a photoelectric conversion element configured to convert input light to charge, and an amplifier configured to amplify the charge converted by the photoelectric conversion element and convert the charge to a voltage, an A/D converter configured to convert the voltages output from the amplifiers of the plurality of pixels to digital values; and a conversion unit configured to convert the digital value output from the A/D converter to the number of photons by referring to reference data, for each of the plurality of pixels, and the reference data is created based on a gain and an offset value for each of the plurality of pixels.Type: GrantFiled: June 18, 2018Date of Patent: December 21, 2021Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tadashi Maruno, Eiji Toda, Mao Nakajima, Teruo Takahashi, Takafumi Higuchi
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Publication number: 20210305773Abstract: A light-emitting device is provided with a light source and a controller. The light source includes multiple light-emitting elements and multiple driving elements that are provided in correspondence with the light-emitting elements and drive the light-emitting elements to light up by going to an ON state. The controller controls a switching between a successive lighting operation that causes the light-emitting elements to light up successively and a simultaneous lighting operation that causes the light-emitting elements to light up simultaneously in parallel. The light source includes a power supply line set to a reference potential or a power supply potential, a driving signal line that is connected to the power supply line and that supplies a driving signal to the driving elements, and a lighting signal line that supplies a lighting signal for causing the light-emitting elements to light up.Type: ApplicationFiled: December 13, 2020Publication date: September 30, 2021Applicant: FUJIFILM Business Innovation Corp.Inventors: Takashi KONDO, Satoshi INADA, Junichiro HAYAKAWA, Takeshi MINAMIRU, Takafumi HIGUCHI